Lock for valves



April 21, 1925. I 1,534,965 5 H. C. KEELER LOCK FOR VALVES Filed April27, 1920 2 Sheets-Sheet l A ril 21, 1925.

H. KEELER LOOK FOR VALVES Filed April 1920 Sheets-Sheet 2 v glwuanfozPatented Apr. El, "i925.

UNlTtill).

HENRY C. KEELEB, G1?

Application filed April 2'7, 1920.

T 0 all 113720722 it may concern.

Be it known that I, Hump: G. Keenan, a citizen of the United States,residing at ltetsil, in the county of Kitsap and State of Washington,have invented certain new and useful Improvements in l'iocks for Valves,of which the following is a spccilication.

This invention relates to improvements in looks for valves and comprisesa housing adapted to be placed in a pipe line intermediate its supplyand discharge, means within the housing for controlling the supplythrough the pipe line, a lock casing in said housing, a lock shattoperating said controlling means, tumblers controlling the movements ofsaid lock shaft and a key adapted to pass through the casing and thehousing and release the tumblers and oscillate or rotate the lock shaftfor operating the controlling means. The invention further comprises aseries of tumbler openings and tumbl rs in the loci: casing andcorresponding openings in the lock operating shaft, so arranged that thetumblers can be interchanged to employ any number of tumblers indifferent openings, thus making a large number of combinations, eachcombination requiring a dilierent key to operate the look, all as morefully hereinafter set forth and as claimed.

The invention further comprises a simple and e'li'ective locl:comprising a small number of inexpensive parts. While I shall describethe look as particularly applicable to valves for automobiles, it may beused in connection with other devices.

In the accompanying drawings showing one form or specific embodiment ofmy invention,

Fig. 1 is a side elevation of a carburetor showing in section myimproved lock and valve in the pipe line leading thereto;

Fig. 2 is a perspective view ot the key, lock, cylinder and valve intheir separated relation and removed ,tt om the housing;

Fig. 8 is an enlarged horizontal transverse sectional view, taken onthcliue 3-El o'l," Fig. 1;

Fig. lis an enlarged horizontal. transverse sectional view, taken on theline l-'1:, Fig. l:

waists PATENT QFFlCE.

'WAfiI-IINGTON.

LOCK FOR VALVES.

Serial No. 376,950.

Fig. 5 is an enlarged horizontal sectional view of the lock taken online 55 of Fig. 1 and looking upwardly;

Fig. 6 is an enlarged vertical sectional view taken through the lock;

Fig. 7 is a transverse horizontal sectional view taken on the line 77,of Fig. 9;

Fig. 8 is an enlarged horizontal transverse sectional view taken on theline 8-43, Fig. 6;

Fig. 9 is an enlarged vertical sectional view showing the tumblerslocking the valve operating stem against rotation.

Referring now to the drawings, 1 represents a carburetor of a gas enginehaving the usual intake connection 2 to which my improved combined valveand lock housing 3 is connected in any desired manner, but preferably bythe screw-threaded connection 4 as shown in Fig. 1 of the drawings. Thehousing 3, as shown, is ofa cylindrical form having its bottom conicalshaped as indicated at 5 and into close fit with the conical valve 6,controlling the passage of oil from the housing through the passage 7 tothe carburetor. The valve 6 is provided in its lower wall, with apassage 8 adapted to register with the passage 7 leading to thecarburetor and with the passage 9 leading through the nipple and towhich is connected a pipe 10 leading from the vacuum tank or the gravityfeed oil supply of the automobile. The valve housing above its conicalbottom has secured therein a lock casing 11 (hereinafter described)which has its upper end provided with a lateral flange 12 resting uponthe annular seat 13 formed on the interior of the valve housing 3 whichis formed by the reduced portion 14. The said reduced portion above thelock casing is provided with internal threads 15 into which is securedthe plug 16. This plug, as shown, rests upon the upper face of the lockcasing 11 and holds the same in engagement with the upper face of thevalve 6, whereby it is tightly held on its seat. The plug 16 is heldagainst removal by the transverse pins l7 passing through the valvehousing whereby the removal of the plug is prevented so thatunauthorized persons cannot remove the lock casing from the housing andoperate the valve. The plug an enlarged central open-- the insertion ofthe key 19 carrying the oppositely disposed lugs or fins 520. Thisinsures the key being inserted in the proper position to operate thespecitic predcterminedv combination as will be later described.

The lock casing, as shown, comprises a cylinder body portion 11 having acent '21 enlarged bore 21 extending from its upper end to a point belowthe center; the casing also has areduc-ed opening communicatinctherewith and extending through the bottom leaving: the thick wallsurroimd ing the same. ll swall 23 is provided with a series of} cylint'ical holes 24 cenn'nunieating with the hoQioinQS T is provided with mg18 to allow of the bore 21. .i have shown eight of these holes whichwill make a great number of combinations but the same can be increasedor decreased as later described without dapartine from my invention.Extending through the opening is a shatt or red 26 which has its lowerend so ared or. angular and adapted to tit into a recess 27 in the valve6 whereby said valve isrotated therewith, The valves being enclosed inthe housing can only be rotated by means of the shaft or red 26.

lVithin the holes 24; are the sliding tumblers 28 which are of acylindrical form closely fitting the walls of the openings and nor mallypressed. upwardly by the springs 29, as shownyin Figs. (3 and 9. rodv"26 about midway its length is provided with a annular flange 30 restingon the bottomQS with its periphery closely fitting against the bore 21.The lower face 01'? this flange 21 is provided witha series oi' openingsill rcgisterahle with the holes 24: and of a ize to allow the tumblersQSto enter the same. The tumblers are limited in their up 'ard movementby, providing reduccd openings as at andcon'n'nunicatiup; therewith arethe reduced openings 33 extending through the upper 't'aceof the flange.

lfhile l: have shown eight recesses for the tinnl'ilers and eightopenings in the flange is understood that it is not necessary that eighttumblers be used in each. locl-z but'one or more tun'lblers could beused and in such an event the receses 31 in the flange l-lo which havcnotumblers below them may be plugged or may. be-omitted.

.ihe sing 11 is closed by acap held thereon by means of a screw 35 andsaidcapisprovided with a central openingBG ot a. size larger than thediameter ofthe shaft 26, which extends up therethrough and is tlush withtheupper face of the cap. This arrangement leaves an annular spacearound the shaft to allow the hollow key 19 to pass down over the shaftwithin the casing. The cap 3 L is provided with slots 38co1nmunicatingwith thecentral opening to allow the fins 20 carried by the key to passthere- The sh aft or scribed. The key 19 as shown is of a sleevelikeform and is provided at its lower end with projections 40 adapted toenter the contracted openings 33 in the disks whereby the tumblers canbe forced from the recesses 81 flush with the lower face of the flange30 so that the same can be rotated. The rota-- tion of the disk or shaftis accomplished by providing; a. fin 41 carried by the shaft 26 abovethe disk 21 and adapted to enter a slot 42 in the lower edge of the key19, thus relieving the tumbler operating; projections from any strain ofthe turning operation.

l heupper end of: the key may be made in any desired .t'ornito providethe necessary gripping surface; to enable the. key to be turned.

In operation the key is inserted in the casing surrounding the rotatingJTlBlnbBB, 26, the-tins 2O assuring that the projections 40 carried bythe lower end of the key will enter the openings inthe flange 30 toforce the tumblers down. The continued d0wnward movement of the keyforces the tum blers below the lower face of the flange. In thisdownward movement the fins 41 on the shaft Qtrhas enteredthc slot :12 inthe lower end of the key and upon the rotation of the key the disk isrotated by this engagement. J'fhe rotation of the flange rotates themember so which in turn rotates the valve 6 'thus allowing; the liquidto pass through the pipe line as heretofore described. In differentlocks the tun'ililers are arranged in dillcrcnt openings and the keyarranged with projections to correspond to the numher and spacingoi 'thetumblers. The remaining openings in the disk are plugged or dispensedwith. By using one or up to eight tumblers and corresponding projectionsonthc he; there are 312 combinations. it being understood that thisnumber of tumblers could be increased or decreased. ln

1 ill llfr from below, and a key having projections entering theopenings from the upper side and forcing the tumblers from within theopenings in the rotating member and said key having interlockingconnection with the rotating member for rotating the same.

2. A lock of the character described comprising a casing, a rotarycontrolling membcr therein and extending through the lower end of thecasing, a flange carried by said member and having a series of openingstherethrongh, spring pressed tumblers carried by the casing and enteringsaid openings from below, and a key adapted to slide over thecontrolling member and having projections on its lower end adapted toenter the openings from the upper side and force the tumblers fromwithin the openings in the flange and a pin carried by the rotary memberfor entering a notch in the lower end of the key whereby the rotarymember is rotated thereby.

3. A look of the character described com prising a casing, a rotarycontrolling member therein and extending through the lower end of thecasing, a flange carried by the rotary controlling member intermediatethe upper and lower ends of the casing, and having vertical openingstherethrough having reduced upper ends, spring pressed tumblers carriedby the casing and entering the lower end of the openings, a cylindricalsleeve like key passing over the upper end of the rotary controllingmember and having projections entering the openings and forcing thetuniblers below the lower face of the flange, interlocking means betweenthe key and the rotary operating means for rotating the same andcooperating positioning means between the key and the casing whereby theprojections will enter the openings for releasing the tumblers.

l. A lock of the character described comprising a casing. a coverclosing the upper end thereof and having a central opening therein, arotary controlling member in the casing and of a diameter less than theopening in the cap, a flange carried by the member intermediate theupper and lower ends of the casing and having a series of verticalciii'cumfercntially ar 'anged openings therethrough having reduced upperends, said casing having a series of circumferentiallv arranged recessesadapted to register with the openings in the flange, spring pressedtumblers in said recesses and adapted to be normally held upwardlywithin the end of the openings in the flange, a cylindrical sleeve likekey passing over the upper end of the rotary controlling member andhaving projections entering the openings in the flange for forcing thetumblers below the lower face of the flange, interlocking means betweenthe key and the rotary member for rotating the same, and cooperatingpositioning means between the key and the casing whereby the projectionswill enter the openings carrying the tumblers.

5. A lock of the character described, comprising a casing, a controllingshaft therein and connected to the movable member to be operated, aflange carried by the controlling shaft intermediate its ends, tumblersin the casing and entering openings in the flange, a key adapted toslide over the controlling shaft and having projections adapted to enterthe openings in the flange and force the tumblers therefrom and allowthe shaft to be rotated, and interlocking means between the lower end ofthe flange and the key whereby the flange is rotated.

(3. A lock of the character described. comprising a casing, acontrolling shaft thereon and connected to the movable member to beoperated, a flange carried by said controlling shaft intermediate itsends, spring pressed tumblers in the casing and normally enteringopenings in the flange, a hollow key adapted to receive the shaft andhaving projections adapted to enter the openings in the flange and forcethe tumblers therefrom and allow the shaft to be rotated andinterlocking means between the flange and the lower end of the keywhereby the flange is rotated by the key.

7. A lock of the character described comprising a casing, a. controllingshaft therein, and connected to the movable member to be operated. aflange carried by the controlling shaft and having a series of openings,spring pressed tumblers carried by the casing and entering some of saidopenings, and a key having projections at its end to enter a series ofsaid openings in the flange, means carried by the casing for causing theprojections to enter the openings with the tumblers therein whereby thetumblers are forced from the flange and the shaft rotated andinterlocking means between the flange and the lower end of the keywhereby the flange is rotated.

8. A lock of the character described com prising a casing, a controllingshaft therein and connected to the movable member to be operated, aflange carried by the controlling shaft and having a series of openings,spring pressed tumblers carried by the casing and cnteriiig some of saidopenings and a key having a number of projections less than the numberof openings in the flange and means carried by the casing for guidingthe key so that the projections on the key will enter the openingscarrying the tumblers whereby the tumblers are forced from the flangeand the shaft rotated by the key.

9. A look of the character described comprising a casing a controllingshaft therein and connected to the movable member to be operated, aflange carried by the controlling shaft intermediate its ends, tumblersin the casing and entering some of the openings in ll'ill the flange, akey of :1 cylindrical form to receive the shaft and having projectionsat its lower end arranged to enter the openings in the flange andinterlocking means between the lower end of the key and the flangewhereby the flange is rotated by the key.

10. A look of the character described com prising a casinga controllingshaft therein and connected to the movable member to be operated, aflange carried by the controlling shaft intermediate its endand having,a series of openings, tumblers in the casing: and: enteiing5S0111e ofthe openings in the flange, and akey, of mcylindrical form to receivethe'upper endoi the shaft projections carried by the lowerencl of thekey and of a less numberthan thetopenings in the flange and adaptecltoenter the openings carrying the tumblers, means for properly guiding thekey, and interlockingmeans between the key and shaft for rotating thesame.

In testimony whereof, Iaflix my signature.

HENRY o. KEELER.

